[Linux-diag-devel] libsysfs device children
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From: Brice G. <Bri...@in...> - 2009-11-13 20:51:49
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Hello, I am looking at libsysfs to simplify some code that walks /sys manually. I would like to have an easy way to list device children such as network interfaces or block objects. For instance, in /sys/bus/pci/devices/0000:0b:02.0 (my Wireless interface), I have net:eth1 pointing to the /sys/class/net/eth1. Similarly, my IDE PCI device contains host0/target0:0:0/0:0:0:0/block:sda which points to /sys/class/block/sda. It offers an easy way to convert physical devices from/to logical objects. Is there an easy to list such children? Device attributes don't seem to contain these, and the children list isn't populated from what I see. thanks Brice Goglin PS: Note that, on some older kernel (2.6.30), /sys/class/foo/bar points to /sys/bus/pci/devices/xxxx:yy:zz.t/foo/bar instead of having /sys/bus/pci/devices/xxxx:yy:zz.t/foo:far point to it. Having a portable way to support both foo/bar and foo:bar children would be nice. |